Pipe-joint.



'C. FORTH.

PIPE JOINT.

APPLICATION FILED 001'. 9, 1909.

2 SHEETS-SHEET 1.

G. FORTH. PIPE JOINT. APPLIGATION FILED OUT. 9, 1909.

Patented Sept. 12, 1911.

2 SHEETS-SHEET 2.

\X/ITN E5555 C?" mi;

I the some till'le 'erence being i ,T Ti

ere-rue 1 ill PIPE-JOINT.

Specification of Letters Patent.

Patented Sept. 12, iltl ll.

Application filed October 9, 15319. Serial No. 521,799.

To all whom it may concern:

Be it known that l, CHART FORTH, a i i the United States, res dinget'Bosin the county of Suffolk and State of ll-lesseehusetts, haveinvented certain new and useful Improvements in Pipe-Joints, of whichthe following ise specification, ref- This irrm Lon relates to pipejoints designed to enable the connected ports to move freely one role.ively to the other, While at preventing the escape of the fluid pa singrough them.

lhe iz'lventi n has special. reference to pipe installations onreilvv'ey trains, Where the connected ports are subjected to frequentrelative movements, and where the fluid, such as stezun or air passing;through the pipes, is under considerablepressure.

The invention consists of an improved joint in which one of the ports isprovided with a removable pecking ring to receive :1 projection on theother part, Insane being provide for holding said parts in closefrictional ..ont-aet, thereby effectually sealing the joint againstleakage, out permitting their free relative movements.

The invention consists also in in'lprovcd means for so sustaining theparts of the joint, Where they extend between coupled cars of e twin,that the oint will be relieved of t? weight of the connected. sections.

In the accompanying drawings :.F1gure l is 9. plan view, partly insection, of e llexiole pipe connection, comprising both a swingingconnection and swiveling oint. big. 2 is longitudinal section throughthe swiveling joint. Fig. 3 is a. side elevation oi the flexibleconnection of 1, showing the inie as applied to the pipe terminal of arailway cor. Fig. 4% is a side elevation of the tapered projectioncarried by one of the members to be connectedthe said pro ectlon beingin its preiterred to -n. Fig. is a. plon'view of the some. Fig. 6 iseplzrn view of the removehle pecking ring, in which the taperedprojection is adopted to seat. Fig. '7 is or crossseetion through thesame on the line 7 7 of Fig. 6. Fig. 3 is a cross-section on the line8-8 of Fig. 7. Fig. 9 is an end view of the tapered projection. in.modified form. Fig. 10 is a. side elevation of the some.

Referring more particularly to Figs. 1, 3,

had therein to the accompen 4, 5, 6, 'l' and 8, my improved jointcomprises as its-essential features epacking ring'l seated removebly inone of the parts to he connected, and a. tapered projection 2 carried bythe other part and adapted to seat frictiouelly Within the packingring", suitable means being provided (as will he more fully describedlater or.) to maintain the projeo tion and ring in. close lluid-tightcont-act.

To Fig. l have shown these parts applied to joints of two forms, oneWhere the connected l rs have at pivotal or swinging motion. re we toeach other; and the other Where the connected members extend in line andhave a swiveling motion about a. com- .nel e:\'is. In both cases,howcohpi it lmllow member A, formed rwitll two opuo "tely extendingbranch pipes :1 d, to the s or which are respectively connected cylndricel hollow chon'ihers B, it, which chambers are in elinemcn't andiced apart. The other j'mrt to he CGll ll-C tion U, l 1 low heed D t enat "find between. the ends of the two nl'iers B, B", and be connectedliquid- '1 hereto by the pitching ring 1 and the ctlon 2, before :15Jded to.

ring" is of one form shown in ,7 6, 7 and 8, consisting 0:? anexterior-1y threaded ring provided with an. iulmrnal air nulzlr groovecontaining at ntervals radial openings extending outwmi. r through thesides of the ring. In. this groove and the radial openings is tio'l'ztlvseated 2L mcking 1*. preferably of Babbitt metal, the bore of which istapered or conical to receive the topecprojcction 2. The outer open endsof the hollow cross-hced D are formed With peripheral internallythreaded recesses, and

. comprises pipe secs end a. trans rec holin each of these threadedrecesses one of thepeclring rings is screwed. The taper-projections 52are adapted to fit closely end frict-ionelly Within the bore of thepacking rings, and each projection is provided with a circular'threadedshoulder 2, from which is ends and :idnptcd to .with them athreaded central stem 2.

extends branch arms 2 having connectgd T e inner ends of the twochambers B, B, are threaded internally and into them are screwed thethreaded shoulders 2, in such manner that the taper-projections willenter and seat tightly within the conical bore of thep'acking-rings. Tothe outer ends of the t readed stems are applied caps F, F,

w i c h when screwed down on the stems closely, seal or close the outerends of the cylindrical chambers. These caps act as jam nuts in holdingthe taper-projections in their proper positions relative to thecylindrical chambers and to the packing rings. From thisdescription itwill be seen that the cross-head may swing or pivot around an axispassing centrally through the same and the two cylindricalchambersyjournals be-' tween the parts being formed eonjointly by thetaper projections fitting in the conical bores of the packing rings.

In applying the invention to a swiveling joint of the form shown in thecenter of Fig. 1 and in Fig.2, where the two members to be connectedextend in line end to end, the.

taper-projection is in the form of a sleeve 3 screwed into the end ofone of the pipe sections, and having its extremity tapered or inclined.The packing ring is of the same .form described andscrewed into aninter- --nally threaded recess in a sleeve 4:, fixed to the other pipesection. The sleeve 3 is provided with an annular shoulder 3* at the endof its tapered portion, which is engaged by a clamping nut 5 encirclingthe sleeve and hearing at its end against the shoulder 3,

sections are firmly joined together liquidtight, but are capable of aswiveling motion one relatively to the other about a'common longitudinalaxis. The end of the tapered collar is extended and formed with a numherof grooves 3 in order to relieve the friction between the parts and formspaces for the accumulation of grit.

In Fig. 3 I have shown a flexible joint ap- "plied to one of the pi eterminals Got 'a railway train pipe system. This joint comprises thedepending connecting section C pivoted at its upper end between thebranchpipes'a,- a and at its lower end between the branch pipes of asecond section (1, this latter being adapted to be coupled with asimilar section carried by the other car. In

operation these parts assume the position shown in Fig. 3,'and in orderthat the weight will be taken off the joints, I provide a spring H fixedat its'npper end to the terminal and at its lower end to an arm h connected with the pipe section C. As a result, this sprfhg will tend tosupport the parts and thereby relieve the joints of their weight, and atthe same time will maintain the lower section at an upward inclination,thereby avoiding the liability of its accidental disconnection from thesection on the adjoining car.

It will be seen from the foregoing description that the joint is ofsimple construction, and by reason of the inclined or taper cooperatingsurfaces of the projection and packing ring, a tight joint may bemaintained bet-ween them, while at the same time their free relativemotion is permitted. In the event of the packing in the ring becomingworn, the latter may be easily removed by unscrewing it from the annularrecess in which it is seated, and the packing renewed.

I have in the accompanying drawings illustrated my invention in the formwhich I prefer to adopt, and which in practice has been found to answersatisfactorily the results and advantages to be attained; but I wish tobe understood that the invention is not limited to any specific form ordetails except in so far as such limitations are specified in theclaims.

-Having-thus described my invention, what I claim is 1. In a pipe joint,the combination of a hollow member, a removable ring seated therein andformed with an interior groove and with openings extending outwardlytherefrom, a packing seated in the groove and engaged in said openin sand forming a bearing socket, a second ollow member having a projectionthereon mounted rotatably in said bearing socket, and means for holdingsaid parts against endwise separation while permitting their freerotation.

2. In a pipe joint and in combination with a hollow member provided withan annular hearing opening, a second hollow member provided withachamber open at its inner and outer ends,-a bearing projection'scre'wedher and provided with a stem extendin axially within the chamber andthreade at its'outer end, and a closing cap for theouter end of thechamber, said cap seated in the outer opening of the chamber and.

screwed on to the threaded end of the stem.

3. In a pipe joint, and in combination. with a hollow member providedwith oppos in the opening, in the inner end of the cham the inner endsof the chambers, central tapered projections 0n the shoulders, a ho]-Iew head between the chambers formed in its endh with threaded annularrecesses, h0I- 5 low nuts screwed into said recesses, and a packing inthe nuts surrounding the tapered projections.

In testimony whereof I afiix my signature in presence of two wltnesses.

CHARLES FORTH.

Witnesses FRANK G. PARKER,

J OHN BUCKLER.

